You are trying to change an Account inside a Visit but the field is grayed out.
SAP Cloud for Customer
Reproducing the Issue
Go to the Visit work center.
Click on Visit.
Click on New.
Select the Account ABC (ABC represents the ID of the Account).
Complete the mandatory fields.
Save and Open.
Click on Edit.
Result: Account field is grayed out.
This is the current system behavior, once the Visit is created, the Account field will become grayed out.
If you need this functionality to change Accounts after a Visit creation urgently you may contact your implementation manager to help with such request or approach directly the SAP Cloud Service Center (email@example.com).
Note: The services of the SAP Cloud Service Center will be charged as packaged services based on fixed prices.
An alternative option may be to check the SAP Customer Influencer Site to submit an idea: https://influence.sap.com/SAPCloudforCustomer.
Visit ; Field; Accounts
KBA , LOD-CRM-ACT-VST , Visit Planning , LOD-CRM-ACT , Activities , How To