We want to update BP General data, Item, Sales and company code using single API Call

[SAPSupport]

We are using this Business Partner (A2X) API_BUSINESS_PARTNER to update business partner data using patch call

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[SAPSupport · Accepted solution]

What you are describing is a "Deep Update", you will need to use a BATCH call to achieve this. Please see the following

See SAP KBA 2822874 - API_BUSINESS_PARTNER Deep Update Error and also API_BUSINESS_PARTNER BATCH Call Help Portal page