Load Rule if UDO value is blank ("")

[pradeep_peiris]

I want to create a load rule to fire a tag (tag1) based on the UDO value (u_val1) we are setting. The UDO value is set via a lookup table (scoped to all tags) based on the pathname. If the pathname is equal to specific page then we set the 'u_val' to '000'. we want the tag to fire only when the UDO value is set. We don't want it to fire when the value is blank (""). How should I go about setting the load rule for this? is it *IF js.u_val1 DEFINED AND js.u_val1 POPULATED (tried this but the tag is not firing on the pages even when 'u_val1' is populated) Or *IF js.u_val1 NOTDEFINED OR js.u_val1 DEFINED AND js.u_val1 POPULATED (tried this but the tag is firing even when 'u_val1' is not populated) What is the correct way of creating the load rule for this?

[son_hoang · Accepted solution]

Hi Pradeep, This won't work because load rules are evaluated before the extensions run. That's why the first set never fires. The second set fires because I'm assuming u_val1 is not defined in your UDO, but instead in your look up tables so the first part of the OR condition is satisfied. There is a way to re-evaluate load rules after 'all tags' scoped extensions run, try this article: https://community.tealiumiq.com/posts/839992-how-to-evaluate-load-rules-after-extensions

[son_hoang]

It could, all your 'all tags' extensions will now be evaluated before your load rules.