I need to create a form like the following attached. User should enter its DNI (just numbers with a validation number at second field), this data should check on DB like the following string: "1928328932-2" (FIELD1-FIELD2)
If exists, show the "discount codes" related to that DNI.
We should be able to upload/update this data on the db through CSV upload.
This CSV would have the followin structure:
This data should be retrieved like the image attached.
the ID for lookup will be DNI (field1-field2). and when upload through CSV the db row should be updated/created also based on that DNI.
Could it be on a WP installation I have already?