In the audience manager, in the "Your data segments" tab, we created a customer list using a CSV with a list of clients that registered in one of our clients' website. The import was successful with a 99% match rate and the list has a size of 1.6k-2.9k users. When we try to add that customer list to the audience signals of our PMax campaigns, the list doesn't appear in the options and at the bottom of the select box it says "1 customer list related segment can't be shown due to eligibility issues." Does anyone know what the problem is?

How normal is it that when you lower tROAS, conversions start dropping? I'm trying to raise the ad spent of a PMax campaing because it isn't spending all the allocated daily budget and so I lowered the tROAS of 2800% I had set by around 10%. It is now spending more and more but the number of conversions is getting lower. Is it because Google is expanding its reach and targeting less qualified audiences, or something else? Also, I'm in the process of separating this exact PMax campaign into a Mid/Low shopping catch all campaign, and I've been moving 40 of the least performing products a day. Currently they're products with no conversions and very few impressions for the past year, but that quantity is making the shopping campaign go into re-learning. Is there a maximum number of products I can add so that it doesn't go into re-learning, or as they are products with no conversion data, is that okay?

On one of our clients' accounts there have been some huge spikes in the metrics. Initially it happened almost every week in a PMax campaign and now it's been happening at least once a month in a branded search campaign. The first few times it happened almost every week the PMax campaign where out of nowhere conversions, conversion value and other metrics would skyrocket compared to the average. We thought it was the client himself clicking on the ads and making test purchases, so we blocked his IP at account level. Even so, there were still these spikes and even outside of working hours, so we stopped using that campaign because of that and we were also restructuring the account. Now lately, in the branding search campaign, there have been abnormal spikes again and when you look at the data, it doesn't make sense. For example, on one day there were 3 impressions, 3 clicks, a cost of 0.03€, 41.76 conversions and an ROAS of 9,806,982.91%, between 6PM and 7PM. Another day, just over a week later, 3 impressions and 3 clicks again, 0.08€ cost, 28.42 conversions and an ROAS of 2,221,711.57%, between 9PM and 10PM. I don't know if this is related to some kind of bot, if it's the client with another IP address, some problem with the conversion tracking, or something else. I've also attached some screenshots. The first one with the blue line is from the pmax campaign. The second one only showing conv. and conv. value and with ROAS of 4,054 and the one with the metrics are from the branded search campaign.

Over the last few weeks I've been splitting one of my client's pmax campaign into a top sellers and mid/low campaigns using Austin's strategy and advice. The client only had one pmax campaign in the account that was performing very well, and we decided to follow Austin's pmax campaign structure method to try to scale it. Of the total available daily budget of 9€, the top sellers campaign has 7€ and the mid/low has 2€. The top sellers has had a tROAS of 3000% even before creating the mid/low campaign. Initially, the mid/low campaign ran without any tROAS, and after Austin's insights, I changed it's bidding to tROAS of 3200% on May 7th to prevent Google splitting traffic. I started splitting products on April 17th, and some time after that the campaign began to struggle. As I have more 3800+ SKUs, at first I've been moving around 30/40 products every day that haven't had any conversions in the last 365 days, until about a week ago when I noticed that the campaign was struggling and I stopped moving products to see if it would recover. The attached graph shows overview data of both campaigns, from the beginning of April until now. The number of clicks and impressions as dropped considerably, and the spend isn't anywhere near half the available budget (in the last few days both combined haven't even spend 2€). The actual ROAS of 2202% in that period of time did not reach the rROAS of 3000%. Could it be that the tROAS is so high that Google is being extremely careful with bidding? Or moving 30/40 products a day, even if they don't have any conversion data, is too much for the campaign to handle? Or another reason?

I'm having a problem in Google Merchant Center where the automatic item updates aren't matching what's being sent with the feed and the products don't get advertised. I use the fetch method and upload a XML file everyday with the product data. For a few weeks now, several products have stopped getting impressions out of the blue. I've done an extensive audit and noticed that the price and availability data from the automatic item updates isn't matching the values with my uploaded product feed. For example, I have a discounted product that it's currently in stock. In the XML file, the original price of €20 is correctly stored in the <g:price> field, the discounted price of €16 is stored in the <g:sale_price> field, and the <g:availability> field has the correct vale "in_stock". However, in Merchant Center, in the "Information found on your website" dropdown, it says the price on the website is €16 and the availability on the website is out of stock. I'm using the PrestaShop platform and it uses the Schema markup language encoded as JSON-LD for the website crawl. I did a lot of research on how to add markup to the discount price and tried to fix it myself without success, and I'm still confused on what to do. I've already contacted Google support and they said it was a problem with the feed. Has anyone ever had this problem?