Contextual Factors/Barriers and Enablers of Implementation	Quote/Statement	Related TDF Domain
Seemingly, those practices that were not already competent at and had possibly insufficient knowledge on VLU treatment—and especially compression therapy—profited most from the interventions. Those who were already confident in their knowledge and skills saw less need for additional education via e-learning.	Pre-existing knowledge and skills in compression therapy could also be the reason for the ambiguous results in MAs’ assessment of whether they now feel more competent in compression therapy. “Because I’ve always had such a fixed programme and it works very well, it’s less useful to me now, I have to say”. (GP07)	Beliefs about capabilities Knowledge skills
The need for regular visits to the practice and the tediousness of the treatment could discourage patients from staying on track, as, e.g., one patient stated that she did not like “That you had to go to the doctor again and again”. (P01)	“That it was just too slow for me until it was closed. But they can’t help it, it’s simply the wound healing process, which sometimes doesn’t happen as quickly as you’d like, right? Patience is just not our strength”. (P06)	Beliefs about capabilities Behavioral regulation Emotions
The patients’ personal interest in healing decisively influences their behavior, with some patients seemingly not wanting to be healed at all, according to the interviewees:	“We have had a patient for 20 years who also has wounds, who rubs them and manipulates the wounds just so that she can receive, let’s say, care and that someone gives her attention… I think they rather have them taken care of than let someone get the wound under control quickly”. (MA04)	Intentions Goals Emotions
One important factor of successful implementation was seen in the practice owner’s attitude towards the study.	“Well, because the boss also attached importance to it. That we now go through with it and do it”. (MA06)	Intentions Goals Social/professional role & identity
The same accounts for GPs’ and MAs’ intrinsic motivation to improve patient care even if it is associated with higher expenditures.	“I think the most important secret of success is that the MAs—the A) themselves are interested in improving the care and that they really get involved”. (GP06)	Intentions Goals
An important context factor influencing patient behaviour is the existence of a social network, such as having children or grandchildren, a spouse, or a neighbor who havz an eye on their relative or neighbor.	“So, we have a concrete case where we were messing around for a long time with nappies and nutrition and so on, and we gave something, this information, and then the children came into play and since then people look at it differently”. (GP02)/“This usually works out quite well, especially when relatives are on board”. (MA06)	Social influences
Not all patients are willing to abandon their independence, not even to their spouse.	“What I don’t like sometimes is that my husband always thinks too much, then I say “let me do it”, then he says “no, sit down”, does my foot again, and I want to stay independent for once”. (P03)	Social influences
Concerning patient education via e-learning and written information for patients, several participants stressed the importance of accessible and layman-friendly language to avoid making information unnecessarily difficult to access, since patients may have different conditions.	„You know because there are also many other people who perhaps understand even less […] and yes for them it [the information, author’s note] is then Bohemian villages”. (P01)	Knowledge Skills
Furthermore, the way patients are dealt with may play a crucial role in how patients perceive their treatment progress, possibly influencing their motivation to “stay on track” (GP01).	“I am a very positive person and I praise a lot. That means that when a patient arrives and I see a slight improvement, I simply praise it. And I don’t go into negative aspects so much, but I am someone who simply says: “oh, you did a nice job” and “it looks like you also did a compression at night”... just such positive support”. (GP07)	Social influences Optimism
This may be a particularly important approach for patients with depressive symptoms. For example, one patient stated to not have read the patient information due to psychological problems at that time which affected her interest:	“And there was nothing good all around me. I then had no interest in anything”. (P02)	Emotions Social influences
While advantages were seen in the e-learning format which made the hurdles of participation more low-threshold—especially during the peak of the pandemic—some participants uttered their preference for live trainings, which, according to them, allowed for more personal contact and exchange.	Some participants questioned the effectiveness of an e-learning format for conveying the skill of correct application of a compression bandage in general, which according to them is something a workshop could be better suited for.	Beliefs about consequences
Context factors influencing the uptake of the e-learning and software are the degree of digital affinity—which seems to highly correlate with age—as well as individual learning preferences concerning, e.g., the teaching format and methods.	“Young people can do it, but I’m 61 now and I’ve really... I know there are people who are 70 and over who are still doing it, but so far I’ve done so well”. (P06)	Beliefs about capabilities Knowledge skills
Concerning the central role of MAs in VLU care, besides the GPs’ and MAs’ attitudes, the individual patient preferences and their socialization seem to play a crucial role to whether greater responsibilities for MAs are accepted. There are patients who might have reservations and prefer being primarily treated and educated by the GP, at least in the beginning of treatment, as was explicitly mentioned by one patient.	A more patriarchal doctor image (“demigod in white”, S03) was mentioned to possibly undermine this approach. “Well, I would definitely say that the doctor should have an eye on it at least the first two or three times and then I would have the confidence that she can do it on her own, but in the beginning I would like the doctor to be there”. (P05)	Social/professional role & identity Social influences
Factors influencing the use of the software for documentation and monitoring were, for example, the scope of documentation or (time) effort, functionality, susceptibility to errors, integrability in everyday practice, and interoperability with the practice software, as well as previous experience with the CareCockpit.	No quote	Knowledge Skills Environmental context & resources