Make sure you have the mautosource option set (it should be by default unless it was previously turned off during your SAS session).
options mautosource;
If your macros are compiled stored macros you also need the mstored option.
Then, as was previously mentioned, make sure your sasautos= option is correct. You can either set this to a previously defined fileref or you can use a system path but the system path must be in quotes.
Each macro needs to be stored in a separate file with a name that matches the macro name, e.g. impute.sas
--Pat
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