AI generated answer (using internal Slack threads):

The error message you're encountering, "Search error occurred: Field 'account' for record 'transactionLine' was not found. Reason: NOT_EXPOSED - Field is marked as internal for channel SEARCH", indicates that the 'account' field is not exposed for search on the 'transactionLine' record. This means that you cannot directly access this field in a search. In NetSuite, not all fields are exposed for search due to various reasons such as performance considerations, data integrity, and security. In this case, the 'account' field is marked as internal, which means it's not exposed for search operations. If you need to access the 'account' field, you might need to find a different approach. For example, you could try to use a SuiteAnalytics Workbook, as it exposes more fields on Account records compared to Saved Searches. Alternatively, you could try to use a formula in an Account saved search, such as

TRIM(REGEXP_SUBSTR({accountgrouped}, '[^:]+'))

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