diff --git a/paths/customer_basic.yaml b/paths/customer_basic.yaml
index b2cff32..a633d2b 100644
--- a/paths/customer_basic.yaml
+++ b/paths/customer_basic.yaml
@@ -9,11 +9,6 @@ get:
       description: AGB of the practice which is known as Zorg op Orde customer (via a care group). 
       schema: 
         $ref: ../schemas/agb.yaml
-    - name: unid
-      in: query
-      description: Internal number used by Zorg op Orde
-      schema: 
-        type: integer
   responses: 
     '200':
       description: Basic information of a practice.
@@ -27,15 +22,23 @@ get:
                 properties:
                   name:
                     type: string
+                  officialName:
+                    type: string
                   agb:
                     $ref: ../schemas/agb.yaml
                   gpis:
                     $ref: ../schemas/GPIS.yaml
+                  doctors:
+                    description: AGB's of the doctors working in the practice.
+                    type: array
+                    items:
+                      $ref: '../schemas/PatIdentity.yaml#/doctor'
                   address:
                     type: object
                     properties:
-                      streetHouseNumber:
+                      address1:
                         type: string
+                        description: The first line of the practice postal address (street name and house number, generally).
                       postcode:
                         $ref: ../schemas/postcode.yaml
                       city:
@@ -50,12 +53,22 @@ get:
                   dataProcessing:
                     type: object
                     properties: 
-                      controller:
-                        type: string
+                      controllers:
                         description: Usually is the practice owner the data controller.
-                      dataProcessingAgreement:
-                        example: If set, the date of the data processing agreement between the controller (general practitioner) and processor (Zorg op Orde).
-                        $ref: ../schemas/date.yaml
+                        type: array
+                        items:
+                          type: string
+                      agreement:
+                        example: If set, the signer and date of the data processing agreement between the controller (responsible general practitioner) and processor (Zorg op Orde).
+                        type: object
+                        properties:
+                          signedBy:
+                            description: Full name of the signer.
+                            type: string
+                          signedOn:
+                            description: Date of signing the data processing agreement.
+                            example: 20160501T1344
+                            $ref: ../schemas/date.yaml
     '400':
       description: If the specified customer is not a practice but some other entity, e.g. a care group.
     '401':