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 Despite working extensively on attributes I still get confused so don’t be too hard on yourself. Here is a note I made for myself sometime ago.

v_attribute_options_id_1 (1 represents attribute option count)

v_attribute_options_name_1_1 (the first 1 represent attribute option count, the second 1 represent language id)

v_attribute_values_id_1_1 (the first 1 represent attribute option count, the second 1 represent value count)

v_attribute_values_price_1_1 (the first 1 represent attribute option count, the second 1 represent price for value count 1)

v_attribute_values_name_1_1_1 (the first 1 represent attribute option count, the second 1 represent value count, the third 1 represent language id)

These are the basic building block, others are just incremental repetition of the same information.

I recently came across this problem; may be it’s not really a problem but it is something worth noting. While importing an EPA file, EPA import will just hang up and display a blank screen. I noticed that the EPA file is actually imported but only up to some point, the first 78 rows to be specific. This implies the code broke on row 79. I didn’t understand the problem immediately because I compared row 78 with row 79; both look similar to me. After a while I decided to remove row 79 and re-import again. To my surprise everything worked fine! Later, after extensive research on the culprit row 79, I finally realized that the problem was due to:

v_products_model

The specified length is 25 characters, but in my offending row, the length was 26. So for this particular row to be imported, I had to alter the number of characters in my products model number to be 25 or less.

If you really need more than 25 characters for product model; go to epconfigure.php (located in admin folder), change:

$modelsize = 25;

to a number of your choice then go to your products table and change

products_model

to the same number.