Dtc codes and remapping, what do you do?

[BBTuning]

Just a general question to see what everyone else does?
When remapping for a delete eg dpf delete or egr delete, do you -

1. Leave dtcs and remap then delete after?

2. Delete dtcs before and then remap?

Mixed views on this when ive asked fellow tuners.

What does everybody else normally do :peaceful:

[JoeBB]

do DTCS first time too!