diff --git a/back/app/template/models.py b/back/app/template/models.py
index afedeca4..951b1e25 100644
--- a/back/app/template/models.py
+++ b/back/app/template/models.py
@@ -40,7 +40,8 @@ class ProvisionTemplateReference(BaseModel):
                 "schema": "ProvisionTemplate",
                 "displayedFields": ['title', 'body']
             },
-        }
+        },
+        props={"parametrized": True}
     )
 
 
@@ -56,6 +57,9 @@ class ContractTemplate(CrudDocument):
         default=[],
         props={"items-per-row": "1", "numbered": True}
     )
-    variables: List[DictionaryEntry] = Field(default=[], format="dictionary")
+    variables: List[DictionaryEntry] = Field(
+        default=[],
+        format="dictionary",
+    )
 
 
diff --git a/back/app/template/schemas.py b/back/app/template/schemas.py
index b7a895c0..c6d8d9df 100644
--- a/back/app/template/schemas.py
+++ b/back/app/template/schemas.py
@@ -1,7 +1,7 @@
-from pydantic import BaseModel
+from pydantic import BaseModel, Field
 from typing import List
 
-from .models import ContractTemplate, ProvisionTemplate, PartyTemplate, ProvisionTemplateReference
+from .models import ContractTemplate, ProvisionTemplate, PartyTemplate, ProvisionTemplateReference, DictionaryEntry
 from ..core.schemas import Writer
 from ..core.models import text_area
 
@@ -17,6 +17,11 @@ class ContractTemplateCreate(Writer):
 class ContractTemplateUpdate(BaseModel):
     name: str
     parties: List[PartyTemplate] = []
+    variables: List[DictionaryEntry] = Field(
+        default=[],
+        format="dictionary",
+        props={"required": False}
+    )
     provisions: List[ProvisionTemplateReference] = []
 
 
diff --git a/front/app/src/common/crud/card/card.component.ts b/front/app/src/common/crud/card/card.component.ts
index d795d275..f3964471 100644
--- a/front/app/src/common/crud/card/card.component.ts
+++ b/front/app/src/common/crud/card/card.component.ts
@@ -19,6 +19,7 @@ export class CardComponent implements OnInit {
   @Input() is_modal: Boolean = false;
 
     @Output() resourceCreated: EventEmitter<string> = new EventEmitter();
+    @Output() resourceUpdated: EventEmitter<string> = new EventEmitter();
     @Output() resourceDeleted: EventEmitter<string> = new EventEmitter();
 
 
@@ -81,6 +82,7 @@ export class CardComponent implements OnInit {
       this.crudService.update(this.resource!, model).subscribe((model: any) => {
         this.model = model;
         this._modelLoading$.next(false);
+        this.resourceUpdated.emit(model._id)
       });
     }
   }
diff --git a/front/app/src/common/crud/crud-formly-jsonschema.service.ts b/front/app/src/common/crud/crud-formly-jsonschema.service.ts
index 06691157..72c392cf 100644
--- a/front/app/src/common/crud/crud-formly-jsonschema.service.ts
+++ b/front/app/src/common/crud/crud-formly-jsonschema.service.ts
@@ -45,6 +45,8 @@ export class CrudFormlyJsonschemaOptions implements FormlyJsonschemaOptions {
             field.type = "date";
         } else if (schema.hasOwnProperty('enum') && schema.enum.length == 1 && schema.enum[0] == schema.default ) {
             field.type = "hidden";
+        } else if (schema.type == "array" && schema.format == "dictionary") {
+            field.type = "dictionary";
         }
 
         if (schema.hasOwnProperty('props')) {
diff --git a/front/app/src/common/crud/crud.module.ts b/front/app/src/common/crud/crud.module.ts
index 946cfdcc..184b51ab 100644
--- a/front/app/src/common/crud/crud.module.ts
+++ b/front/app/src/common/crud/crud.module.ts
@@ -20,6 +20,8 @@ import { JsonschemasService } from "./jsonschemas.service";
 import { MultiSchemaTypeComponent } from "./types/multischema.type";
 import { ForeignkeyTypeComponent } from "./types/foreignkey.type";
 import {HiddenTypeComponent} from "./types/hidden.type";
+import {DictionaryTypeComponent} from "./types/dictionary.type";
+import {DictionaryService} from "./types/dictionary.service";
 
 
 @NgModule({
@@ -33,8 +35,15 @@ import {HiddenTypeComponent} from "./types/hidden.type";
     MultiSchemaTypeComponent,
     ForeignkeyTypeComponent,
     HiddenTypeComponent,
+    DictionaryTypeComponent
+  ],
+  providers: [
+      JsonschemasService,
+      ApiService,
+      CrudService,
+      CrudFormlyJsonschemaService,
+      DictionaryService
   ],
-  providers: [ JsonschemasService, ApiService, CrudService, CrudFormlyJsonschemaService ],
   imports: [
     CommonModule,
     HttpClientModule,
@@ -51,6 +60,7 @@ import {HiddenTypeComponent} from "./types/hidden.type";
         { name: 'multischema', component: MultiSchemaTypeComponent },
         { name: 'foreign-key', component: ForeignkeyTypeComponent },
         { name: 'hidden', component: HiddenTypeComponent },
+        { name: 'dictionary', component: DictionaryTypeComponent },
       ]
     }),
     FormlyBootstrapModule
diff --git a/front/app/src/common/crud/types/dictionary.service.ts b/front/app/src/common/crud/types/dictionary.service.ts
new file mode 100644
index 00000000..5271d8f8
--- /dev/null
+++ b/front/app/src/common/crud/types/dictionary.service.ts
@@ -0,0 +1,23 @@
+import { Injectable } from '@angular/core';
+import {Observable, Subject} from "rxjs";
+
+@Injectable()
+export class DictionaryService {
+    fieldsParameters: {[field_id: string]: string[]} = {}
+    parameters: string[] = []
+    parameters$: Subject<string[]> = new Subject<string[]>()
+
+    updateParameters(field_id: string, newParameters: string[]) {
+        this.fieldsParameters[field_id] = newParameters;
+
+        this.parameters = [].concat();
+        for (const field of Object.values(this.fieldsParameters)) {
+            this.parameters = this.parameters.concat(field);
+        }
+        this.parameters = this.parameters.filter(
+            (item,index) => this.parameters.indexOf(item) === index
+        );
+
+        this.parameters$.next(this.parameters)
+    }
+}
\ No newline at end of file
diff --git a/front/app/src/common/crud/types/dictionary.type.ts b/front/app/src/common/crud/types/dictionary.type.ts
new file mode 100644
index 00000000..d876baa9
--- /dev/null
+++ b/front/app/src/common/crud/types/dictionary.type.ts
@@ -0,0 +1,97 @@
+import { Component, OnInit } from '@angular/core';
+import {FieldType, FieldTypeConfig, FormlyFieldConfig, FormlyFormOptions} from '@ngx-formly/core';
+import {FormControl, FormGroup, FormArray} from "@angular/forms";
+import {DictionaryService} from "./dictionary.service";
+import {JSONSchema7} from "json-schema";
+import {FormlyJsonschema} from "@ngx-formly/core/json-schema";
+
+@Component({
+    selector: 'formly-dictionary-type',
+    template: `
+        <div class="mb-3">
+            <ngb-accordion #acc="ngbAccordion" activeIds="ngb-panel-0">
+                <ngb-panel>
+                    <ng-template ngbPanelTitle>
+                        <label *ngIf="props.label && props['hideLabel'] !== true" [attr.for]="id"
+                               class="form-label">{{ props.label }}
+                            <span *ngIf="props.required && props['hideRequiredMarker'] !== true" aria-hidden="true">*</span>
+                        </label>
+                    </ng-template>
+                    <ng-template ngbPanelContent>
+                        <div class="alert alert-danger" role="alert" *ngIf="showError && formControl.errors">
+                            <formly-validation-message [field]="field"></formly-validation-message>
+                        </div>
+                        <formly-form [model]="parameterModel" [fields]="parameterFields" [form]="parameterForm"></formly-form>
+                    </ng-template>
+                </ngb-panel>
+            </ngb-accordion>
+        </div>
+    `,
+})
+export class DictionaryTypeComponent extends FieldType<FieldTypeConfig> implements OnInit
+{
+    public errorMsg: string = "";
+
+    parameterForm: FormGroup = new FormGroup({});
+    parameterList: string[] = [];
+    parameterModel: {[field_id: string]: string} = {};
+    parameterFields: FormlyFieldConfig[] = [];
+
+    constructor(protected service: DictionaryService,
+                private formlyJsonschema: FormlyJsonschema) {
+        super();
+    }
+
+    ngOnInit() {
+        for (const entry of this.formControl.value) {
+            this.parameterModel[entry.key] = entry.value;
+        }
+
+        this.service.parameters$.subscribe((parameters) => {
+            this.parameterList = parameters;
+            for (const pname of parameters) {
+                if (Object.keys(this.parameterModel).indexOf(pname) == -1) {
+                    this.parameterModel[pname] = "";
+                }
+            }
+
+            this.parameterFields = [this.formlyJsonschema.toFieldConfig(
+                this.getFormSchema(parameters)
+            )];
+            this.parameterForm.setValue(this.parameterModel, {emitEvent: false});
+        });
+
+        this.parameterForm.valueChanges.subscribe((values) => {
+            this.parameterModel = values;
+
+            const formValue: { key :string, value: string }[] = []
+            for (const [key, value] of Object.entries(this.parameterModel)) {
+                formValue.push({key, value});
+            }
+            this.formControl.setValue(formValue)
+        })
+    }
+
+    getFormSchema(properties: string[]) {
+        const schema: JSONSchema7 = {
+            type: "object",
+            properties: {
+            },
+        };
+        let required: string[] = []
+        for (const pname of properties) {
+            schema.properties![pname] = {
+                type: "string",
+                title: pname
+            }
+            if (this.field.props.required) {
+                required.push(pname)
+            }
+        }
+        schema.required = required
+
+        return schema
+    }
+
+
+}
diff --git a/front/app/src/common/crud/types/foreignkey.type.ts b/front/app/src/common/crud/types/foreignkey.type.ts
index 6bf9d728..53246017 100644
--- a/front/app/src/common/crud/types/foreignkey.type.ts
+++ b/front/app/src/common/crud/types/foreignkey.type.ts
@@ -7,6 +7,7 @@ import { NgbModal } from '@ng-bootstrap/ng-bootstrap';
 import { CrudService, Filters } from "../crud.service";
 import { CrudFormlyJsonschemaService } from "../crud-formly-jsonschema.service";
 import { FormGroup } from "@angular/forms";
+import {DictionaryService} from "./dictionary.service";
 
 @Component({
     selector: 'formly-foreignkey-type',
@@ -61,13 +62,14 @@ import { FormGroup } from "@angular/forms";
                            [resource_id]="this.foreignModel._id" 
                            [schema]="this.foreignSchema" 
                            [is_modal]="true" 
-                           (resourceDeleted)="onResourceDeleted($event)">
+                           (resourceDeleted)="onResourceDeleted($event)"
+                           (resourceUpdated)="onResourceModified($event)">
                 </crud-card>
                 <crud-card *ngIf="! this.hasValue()" 
                            [resource]="this.foreignResource"
                            [schema]="this.foreignSchema"
                            [is_modal]="true"
-                           (resourceCreated)="onResourceCreated($event)">
+                           (resourceCreated)="onResourceModified($event)">
                 </crud-card>
             </div>
             <div class="modal-footer">
@@ -88,7 +90,8 @@ export class ForeignkeyTypeComponent extends FieldType<FieldTypeConfig> implemen
 
     constructor(private crudService: CrudService,
                 private formlyJsonschema: CrudFormlyJsonschemaService,
-                private modalService: NgbModal
+                private modalService: NgbModal,
+                protected service: DictionaryService
     ) {
         super();
     }
@@ -114,18 +117,12 @@ export class ForeignkeyTypeComponent extends FieldType<FieldTypeConfig> implemen
                     this.foreignModel = {};
                     this.foreignLabel = "";
                 } else if (v != this.foreignModel._id) {
-                    this.getResource(v).pipe(
-                        map(v => { this.setModel(v); return v; }),
-                        map( v => this.formControl.patchValue(v._id))
-                    ).subscribe()
+                    this.loadModel(v);
                 }
             })
         ).subscribe();
         if (this.hasValue()) {
-            this.getResource(this.formControl.value).pipe(
-                map( v => { this.setModel(v); return v; }),
-                map( v => this.formControl.patchValue(v._id))
-            ).subscribe()
+            this.loadModel(this.formControl.value);
         }
     }
 
@@ -133,6 +130,13 @@ export class ForeignkeyTypeComponent extends FieldType<FieldTypeConfig> implemen
         return this.crudService.get(this.foreignResource, id);
     }
 
+    loadModel(id:string) {
+        this.getResource(id).pipe(
+            map(v => { this.setModel(v); return v; }),
+            map( v => this.formControl.patchValue(v._id))
+        ).subscribe()
+    }
+
 	search: OperatorFunction<string, readonly string[]> = (text$: Observable<string>) => {
         return text$.pipe(
             debounceTime(200),
@@ -163,6 +167,7 @@ export class ForeignkeyTypeComponent extends FieldType<FieldTypeConfig> implemen
         this.foreignModel = model;
         this.foreignLabel = model.label;
         this.loadDisplayedFields();
+        this.service.updateParameters(this.field.id!, this.getParameters())
     }
 
     hasValue() {
@@ -173,9 +178,9 @@ export class ForeignkeyTypeComponent extends FieldType<FieldTypeConfig> implemen
 		this.modalService.open(modal, { size: 'xl' });
     }
 
-    onResourceCreated(resource_id: string) {
+    onResourceModified(resource_id: string) {
         this.modalService.dismissAll();
-        this.getResource(resource_id);
+        this.loadModel(resource_id);
     }
 
     see(modal: any) {
@@ -213,4 +218,26 @@ export class ForeignkeyTypeComponent extends FieldType<FieldTypeConfig> implemen
         });
         }
     }
+
+    getParameters() {
+        return this.extractParameters(this.foreignModel);
+    }
+
+    extractParameters(obj: any) {
+        let result: string[] = [];
+        for (const [k, v] of Object.entries(obj)) {
+            if (typeof(obj[k]) == "string") {
+                const matches = obj[k].match(/%[^\s.]+%/g);
+                if (matches) {
+                    result = result.concat(matches.map((p: string | any[]) => p.slice(1,-1)) || []);
+                }
+
+                result = result.concat();
+            } else if (typeof(obj[k]) == "object") {
+                result = result.concat(this.extractParameters(obj[k]));
+            }
+        }
+
+        return result
+    }
 }