I'm looking to combine 52 tables (weekly scrap reports from our ERP software) using PowerQuery. The column headers (see attached sample) are the scrap codes recorded during the week being reported. Therefore the number of columns in each table varies with what issues were found. I also have a summary table (with one dummy record) that has all available scrap code columns.
My approach was to use the summary table as the main starting point and merge the other 52 tables into that one. I've tried both Merge and Append without success.

Using Merge:
1) software wants me to "Select the same number of columns from both visible tables to continue", not practical with over 300 scrap codes in the master table (yes, that's way too many codes, but that's what's in the system)
2) this process only merges two tables at a time (I've got 52)



Using Append:
1) this process will merge multiple tables but only the first four columns

I downloaded PowerQuery today and don't have any experience using it. Any advice would be highly welcomed.

NOTICE: cross-posted on MSOfficeForums and ElsmarQualityforum

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