Visitnum should be assigned or derived in SV domain and other domains like ECG

[Rakesh93]

Visitnum should be derived or assigned from TV dataset in Subject Visit dataset and anyother domain in SDTM Mapping.

[PeterClemmensen]

Help us help you. Show us some sample data and describe what you want to do

[Rakesh93]

I want to know that visitnum should be derived or assigned from Trial Visit
dataset.

[ballardw]

42

Or share some actual content of your data.

Instructions here: https://communities.sas.com/t5/SAS-Communities-Library/How-to-create-a-data-step-version-of-your-dat... will show how to turn an existing SAS data set into data step code that can be pasted into a forum code box using the {i} icon or attached as text to show exactly what you have and that we can test code against.