Skip to Content
Technical Articles
Author's profile photo Vikrant Guptarya

Business Partner Screen Enhancement -Switching the entry of a BP last name to optional

Override  Business Partner validation as save event via BDT

The BDT (Business Data Toolset) is a central control tool for maintaining master data and simple transaction data. In addition to dialog maintenance, it also supports maintenance with direct input and/or function modules.

Enhancing the screen to make BP last name optional is a common requirement however known to be quite tedious if correct steps are not known.

The below blog explains the steps required to make a Business Partner to last name as optional.


Execute t-code BUPT -> Business Partner -> Control -> Screen Layout -> Field Group or t-code BUS2.

The standard field group 25 shows only First Name among the mandatory fields




However Last Name is still Mandatory when an user attempts to save it.


Follow the below steps

  1. Create a function group -> within this function group create a copy of function module ISU_BUPA_EVENT_DCHCK.
  2. Execute BUPT ->  Select Business Partner→ Controls → Applications (transaction BUS1). Create an individual application. Save your entries. (e.g. Z test BP enhancement)


NB: Do not mark as active as this stage

  1. Select Business Partner  Controls  Events (transaction BUS7). Select the DCHCK line (checks before saving (cross-view)) and then select Allocate Event  Function Modules.





  1. When you have finished implementing your module, mark your application as Active (transaction BUS1). Save your entries.



  • We have now learnt to override Business Partner Mandatory check during save event. It can be further explored to identify other checks that we can override at BP save event.


Please feel free to add your queries / suggestions to help improve the blog!!!





Assigned Tags

      1 Comment
      You must be Logged on to comment or reply to a post.
      Author's profile photo Cunchit Sunprasert
      Cunchit Sunprasert

      I want to change Last name is optional. I do step as you suggest but I still have an error

      "While saving the customer-specific data of the business partner the following error occurred:

      Customer 2000201207: Specify name of contact person
      CMD_API 069" Could you please help me.