Hi Anindya,
I am sure you have a business case to pin all attributes of a given profile but doing so will ignore all those survivorship rules put in place for each of those attributes. Pinning is like set in stone. Unless someone un-pins, those attribute values stay forever. Even if there is a way, its not straight forward to identify which contributing source attribute needs pinning especially if the profile has multiple sources contributing. If you need to do this for a handfull of profiles then it can be done by someone like a data steward manually within the UI but if this is to be done for a lot of profiles in bulk then the API route doesnt work because its not supported.
regards,
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Bhaskar Nunna
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