Task
The YML contains normal SKUs and free text in vendorCode. The import needs only codes such as LA-22001.
Short answer
Add an export condition to offer: vendorCode must match regular expression ^[A-Z]{2}-[0-9]{5}$ (matches two uppercase Latin letters, a dash, and five digits from start to end).
How to do it in Eofferix
In the XML/YML snapshot, select the repeated
offernode.Open the node settings.
The animation shows opening settings for the repeated product node. Add an export condition for
vendorCode:vendorCode^[A-Z]{2}-[0-9]{5}$.
The condition is applied to the whole item.
Before / after
Before
source data<yml_catalog date="2026-06-29 10:00">
<shop>
<offers>
<offer id="YML-22001"><name>Hudson lamp</name><vendorCode>LA-22001</vendorCode><price>1290.00</price></offer>
<offer id="YML-22002"><name>Parker chair</name><vendorCode>supplier item 22002</vendorCode><price>8400.00</price></offer>
<offer id="YML-22003"><name>Harbor shelf</name><vendorCode>PN-22003</vendorCode><price>990.00</price></offer>
</offers>
</shop>
</yml_catalog>After
result<yml_catalog date="2026-06-29 10:00">
<shop>
<offers>
<offer id="YML-22001"><name>Hudson lamp</name><vendorCode>LA-22001</vendorCode><price>1290.00</price></offer>
<offer id="YML-22003"><name>Harbor shelf</name><vendorCode>PN-22003</vendorCode><price>990.00</price></offer>
</offers>
</shop>
</yml_catalog>What to keep in mind
- If one prefix is enough, for example
LA-, usecontainsorstarts withwithout a regular expression. - Put the mask on
offerso the whole product with a bad SKU is removed.