SAP Knowledge Base Article - Public

2050762 - Errors While Trying to Update Contact Details For an Account Using Mass Data Maintenance


You are trying to update contact details for an existing customer using Mass Data Maintenance, but the import fails with one or more of the following errors:

  • "Missing key specification for processing node <BUSINESS_PARTNER_RELATIONSHIP ROOT>Update not possible; existing data for <CONTACT_PERSON> not fully specified"
  • "Only list complete transmission (LCTI) allowed for CUSTOMER-CONTACT_PERSON - CONTACT_PERSON_CTI"


  • SAP Cloud For Customer
  • SAP Business ByDesign

Reproducing the Issue

  1. Go to Mass Data Maintenance work center
  2. Click Export Customers link
  3. Export the Contacts tab to CSV file and add the contact details for the account
  4. Click Import Customers link and upload the file to the Contacts tab
  5. Execute Data Import immediately
  6. Error occurs


These errors occur when you are trying to add a new contact to an existing customer which is not possible using Mass Data Maintenance. You can only modify an existing record using this option.


You could add this contact id to an existing customer using enhance already existing records option in the migration tool with the following steps:

  1. Go to Business Configuration work center
  2. Go to Overview view
  3. Select to Show All Configuration Elements and find the activity: Migration of Customers
  4. Select the link: Migrate Customers Using the Migration Tool
  5. Click the link You Can Also, and click Download Migration Template
  6. Fill the downloaded template, and upload it to the migration tool using the button Upload
  7. Select the uploaded file in the migration tool staging area
  8. Select the Properties button
  9. In the dropdown for Migration Mode, select Enhance Already Existing Records
  10. Click Save
  11. Execute Migration Step by Step


Customer Contacts, Migration Tool, mass data maintenance, error message, BUSINESS_PARTNER_RELATIONSHIP ROOT, Update not possible, CONTACT_PERSON, Massendatenbearbeitung, Ansprechpartner, Kunde, nicht möglich, Fehlermeldung , KBA , update contacts , update not possible , business_partner_relationship root , LOD-LE-MIG-MWB , LEAP Migration workbench , How To


SAP Business ByDesign all versions ; SAP Cloud for Customer add-ins all versions