Import only existing values
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Hi!
I want to reopen the question, which was already asked here https://wordpress.org/support/topic/import-only-not-null-values/ about importing not null values.
So I did like it’s described in answer, but met next problem.
When I see in a code that a value in xml is empty, I use a value from a post. But in same time it appears that values from a post already empty.
So there is some problem with “pmxi_acf_custom_field” hook. I can’t use any values from post in this hook because they are already updates.
Hope I explained the problem.
PS There are some attachment in the post in the link, maybe they help.
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