How to disable multiple assignments on a single asset

Summary:

Content (please ensure you mask any confidential information):

We have a requirement wherein the ask is to disable user from entering multiple assignments in a single asset in the following transactions:

• Additions
• Unit Adjustment in Transfer functionality

For Ex:

Asset number 1 was getting capitalized and user has the option to create multiple assignments at the time of capitalization and also, at the time of unit adjustments in transfers same can be done by users. Can you please help us in restricting this feature ?

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